Air conditioning
Repair, replacement and new installs to get you through the Sacramento heat.
Family owned & operated in Fair Oaks since 1989
Heating and air conditioning, from a family you can actually reach.
AC, furnace and heat pump repair and installation within 30 miles of Fair Oaks. When you call, you talk to Don.
- Since 1989Serving Fair Oaks
- 7am to 9pmOpen every day
- 30 milesService radius
COOLING86°FFair Oaks comfort
On the road since 1989
The same family truck, the same phone number answered by Don.
Calling or texting reaches the owner directly.
Services
Everything that keeps your home comfortable.
We sell, install and repair most major brands, gas or electric.
Furnaces & heat pumps
Gas or electric, most major brands. Repairs that stop short cycling, or a new install when it's time.
Maintenance
Regular care that keeps systems efficient and helps you avoid expensive repair bills.
Wi-Fi thermostats
We install and set up most major smart thermostat brands.
Water heaters
Water heater replacements, handled by the same family you call for heating and air.
Whole-house & attic fans
Ventilation to pull hot air out of the house on summer evenings.
About
Two generations, still owner operated.
Founded by Donald Cassel Sr., Cassel Air Conditioning & Heating Service has served Fair Oaks since 1989, and the family's heating and cooling experience goes back to 1982.
Don still handles the calls himself, with his assistant Molly alongside. The goal is simple: get the job done right, keep your system efficient, and help you avoid costly repair bills.
- 1982
- Family starts in heating & cooling
- 1989
- Cassel opens in Fair Oaks
- BBB
- Accredited business
What customers say
Recent reviews
From reviews published on casselair.com.
“Not only did they do an exceptional job but they explained exactly what they were doing and there were no hidden costs.”
“Don answered the phone and then managed to have our AC up and running the next day!! I will continue to call Don for all my heating and cooling work.”
“Don and helper Molly were great! I couldn't say enough about how they took care of everything with my ac during this awful heatwave.”
Service area
Up to 30 miles from Fair Oaks.
Including these communities across Sacramento County and nearby.
- Cameron Park
- Carmichael
- Citrus Heights
- El Dorado Hills
- Elk Grove
- Fair Oaks
- Folsom
- Granite Bay
- Orangevale
- Rancho Cordova
- Rocklin
- Roseville
- Sacramento
Contact
Tell us what's going on.
Calling or texting reaches Don directly and is the fastest way to get help.
- Call
- (916) 983-2503
- Text
- (530) 363-0564
- d.cassel@att.net
- Hours
- Every day, 7am to 9pm
- Based in
- Fair Oaks, CA 95628
FAQ
Common questions
Do you offer same-day AC repair?
When your air conditioning is out, call and we'll do our best to get there today.
Who will work on my system?
Cassel is family owned and owner operated. When you call or text, you reach Don Cassel directly.
What areas do you serve?
Fair Oaks and up to about 30 miles around it, including the cities listed above.
Do you work on all brands?
We sell, install and repair most major brands of furnaces, heat pumps and air conditioners, gas or electric, and work with most Wi-Fi thermostats.
Are you licensed?
Yes. California State License #825314. Cassel is also BBB accredited.
What are your hours?
7am to 9pm, seven days a week.